So here's the problem on my Xperia Z C6602.
I am stuck on the lockscreen. Can't remember the pattern. Can't login through Google cos the Wifi and Data Connection is off. I tried the service menu code but it doesn't work, I'm updated to the latest version of Android. I can't update/repair phone through Sony Companion cos it says there is no software available. I used the flashtool but it says "Device cannot be officialy unlocked". I went through ADB and the phone connection is perfectly fine (got a 0.5s response) but I cannot unlock the bootloader as I get a FAILED message. I used the flashtool provided by Sony but my phone is recognized as locked and I can't do anything there either. I'm running out of options
Some help would be really appreciated. Thank you, kind people.